13138970 has 32 divisors (see below), whose sum is σ = 25643520. Its totient is φ = 4818240.

The previous prime is 13138949. The next prime is 13138997. The reversal of 13138970 is 7983131.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27191 + ... + 27669.

It is an arithmetic number, because the mean of its divisors is an integer number (801360).

Almost surely, 2^13138970 is an apocalyptic number.

13138970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13138970 is a deficient number, since it is larger than the sum of its proper divisors (12504550).

13138970 is a wasteful number, since it uses less digits than its factorization.

13138970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 13138970 is about 3624.7717169499. The cubic root of 13138970 is about 235.9683597341.

The spelling of 13138970 in words is "thirteen million, one hundred thirty-eight thousand, nine hundred seventy".